40079290 has 16 divisors (see below), whose sum is σ = 73366560. Its totient is φ = 15759760.

The previous prime is 40079279. The next prime is 40079293. The reversal of 40079290 is 9297004.

It is not an unprimeable number, because it can be changed into a prime (40079293) 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, 33376 + ... + 34555.

It is an arithmetic number, because the mean of its divisors is an integer number (4585410).

Almost surely, 2^40079290 is an apocalyptic number.

40079290 is a deficient number, since it is larger than the sum of its proper divisors (33287270).

40079290 is a wasteful number, since it uses less digits than its factorization.

40079290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67997.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 40079290 is about 6330.8206419073. The cubic root of 40079290 is about 342.2210135090.

The spelling of 40079290 in words is "forty million, seventy-nine thousand, two hundred ninety".