40051600 has 30 divisors (see below), whose sum is σ = 96224930. Its totient is φ = 16020480.

The previous prime is 40051577. The next prime is 40051631. The reversal of 40051600 is 615004.

It can be written as a sum of positive squares in 3 ways, for example, as 512656 + 39538944 = 716^2 + 6288^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49665 + ... + 50464.

Almost surely, 2^40051600 is an apocalyptic number.

40051600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40051600 is an abundant number, since it is smaller than the sum of its proper divisors (56173330).

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

40051600 is a wasteful number, since it uses less digits than its factorization.

40051600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100147 (or 100136 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 40051600 is about 6328.6333437797. The cubic root of 40051600 is about 342.1421840771.

Adding to 40051600 its reverse (615004), we get a palindrome (40666604).

The spelling of 40051600 in words is "forty million, fifty-one thousand, six hundred".