1420353900 has 288 divisors, whose sum is σ = 5257441280. Its totient is φ = 322237440.

The previous prime is 1420353863. The next prime is 1420353901. The reversal of 1420353900 is 93530241.

1420353900 = T₂₆₀ + T₂₆₁ + ... + T₂₀₄₃.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1420353901) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4214532 + ... + 4214868.

Almost surely, 2^1420353900 is an apocalyptic number.

1420353900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420353900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2628720640).

1420353900 is an abundant number, since it is smaller than the sum of its proper divisors (3837087380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420353900 is a wasteful number, since it uses less digits than its factorization.

1420353900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1420353900 is about 37687.5828357299. The cubic root of 1420353900 is about 1124.0842325311.

The spelling of 1420353900 in words is "one billion, four hundred twenty million, three hundred fifty-three thousand, nine hundred".