40197892 has 24 divisors (see below), whose sum is σ = 81139520. Its totient is φ = 17068320.

The previous prime is 40197889. The next prime is 40197907. The reversal of 40197892 is 29879104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3534 + ... + 9637.

Almost surely, 2^40197892 is an apocalyptic number.

It is an amenable number.

40197892 is an abundant number, since it is smaller than the sum of its proper divisors (40941628).

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

40197892 is a wasteful number, since it uses less digits than its factorization.

40197892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13291 (or 13289 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 40197892 is about 6340.1807545211. The cubic root of 40197892 is about 342.5582460835.

It can be divided in two parts, 4019 and 7892, that added together give a palindrome (11911).

The spelling of 40197892 in words is "forty million, one hundred ninety-seven thousand, eight hundred ninety-two".