40257948 has 24 divisors (see below), whose sum is σ = 94041360. Its totient is φ = 13404160.

The previous prime is 40257947. The next prime is 40257983. The reversal of 40257948 is 84975204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40257947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15718 + ... + 18098.

It is an arithmetic number, because the mean of its divisors is an integer number (3918390).

Almost surely, 2^40257948 is an apocalyptic number.

It is an amenable number.

40257948 is an abundant number, since it is smaller than the sum of its proper divisors (53783412).

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

40257948 is a wasteful number, since it uses less digits than its factorization.

40257948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797 (or 3795 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 40257948 is about 6344.9151294560. The cubic root of 40257948 is about 342.7287561961.

The spelling of 40257948 in words is "forty million, two hundred fifty-seven thousand, nine hundred forty-eight".