40100738 has 8 divisors (see below), whose sum is σ = 60385932. Its totient is φ = 19972096.

The previous prime is 40100719. The next prime is 40100743. The reversal of 40100738 is 83700104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39980329 + 120409 = 6323^2 + 347^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38495 + ... + 39522.

Almost surely, 2^40100738 is an apocalyptic number.

40100738 is a deficient number, since it is larger than the sum of its proper divisors (20285194).

40100738 is a wasteful number, since it uses less digits than its factorization.

40100738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78276.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 40100738 is about 6332.5143505562. The cubic root of 40100738 is about 342.2820479185.

The spelling of 40100738 in words is "forty million, one hundred thousand, seven hundred thirty-eight".