40897604 has 24 divisors (see below), whose sum is σ = 79248288. Its totient is φ = 18311040.

The previous prime is 40897501. The next prime is 40897607. The reversal of 40897604 is 40679804.

It is a happy number.

It is a super-2 number, since 2×40897604² = 3345228025881632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40897607) 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, 3989 + ... + 9884.

It is an arithmetic number, because the mean of its divisors is an integer number (3302012).

Almost surely, 2^40897604 is an apocalyptic number.

40897604 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40897604 is a deficient number, since it is larger than the sum of its proper divisors (38350684).

40897604 is a wasteful number, since it uses less digits than its factorization.

40897604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13955 (or 13953 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 40897604 is about 6395.1234546332. The cubic root of 40897604 is about 344.5344248522.

The spelling of 40897604 in words is "forty million, eight hundred ninety-seven thousand, six hundred four".