40779036 has 36 divisors (see below), whose sum is σ = 103353432. Its totient is φ = 13557024.

The previous prime is 40779031. The next prime is 40779047. The reversal of 40779036 is 63097704.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40779031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14670 + ... + 17226.

Almost surely, 2^40779036 is an apocalyptic number.

It is an amenable number.

40779036 is an abundant number, since it is smaller than the sum of its proper divisors (62574396).

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

40779036 is a wasteful number, since it uses less digits than its factorization.

40779036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3010 (or 3005 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 40779036 is about 6385.8465374608. The cubic root of 40779036 is about 344.2011510595.

The spelling of 40779036 in words is "forty million, seven hundred seventy-nine thousand, thirty-six".