40678992 has 30 divisors (see below), whose sum is σ = 113845082. Its totient is φ = 13559616.

The previous prime is 40678961. The next prime is 40679033. The reversal of 40678992 is 29987604.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 29550096 + 11128896 = 5436^2 + 3336^2 .

It is a congruent number.

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, 141103 + ... + 141390.

Almost surely, 2^40678992 is an apocalyptic number.

It is an amenable number.

40678992 is an abundant number, since it is smaller than the sum of its proper divisors (73166090).

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

40678992 is a wasteful number, since it uses less digits than its factorization.

40678992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282507 (or 282498 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 40678992 is about 6378.0084665983. The cubic root of 40678992 is about 343.9194421063.

The spelling of 40678992 in words is "forty million, six hundred seventy-eight thousand, nine hundred ninety-two".