1901298864 has 40 divisors (see below), whose sum is σ = 5125243392. Its totient is φ = 606210880.

The previous prime is 1901298857. The next prime is 1901298869. The reversal of 1901298864 is 4688921091.

It is a super-2 number, since 2×1901298864² = 7229874740495380992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1901298869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859992 + ... + 862199.

Almost surely, 2^1901298864 is an apocalyptic number.

It is an amenable number.

1901298864 is an abundant number, since it is smaller than the sum of its proper divisors (3223944528).

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

1901298864 is a wasteful number, since it uses less digits than its factorization.

1901298864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722225 (or 1722219 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 1901298864 is about 43603.8858818798. The cubic root of 1901298864 is about 1238.8444976266.

The spelling of 1901298864 in words is "one billion, nine hundred one million, two hundred ninety-eight thousand, eight hundred sixty-four".