40465090 has 16 divisors (see below), whose sum is σ = 73146240. Its totient is φ = 16117360.

The previous prime is 40465067. The next prime is 40465097. The reversal of 40465090 is 9056404.

It is not an unprimeable number, because it can be changed into a prime (40465097) 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, 6076 + ... + 10855.

It is an arithmetic number, because the mean of its divisors is an integer number (4571640).

Almost surely, 2^40465090 is an apocalyptic number.

40465090 is a deficient number, since it is larger than the sum of its proper divisors (32681150).

40465090 is a wasteful number, since it uses less digits than its factorization.

40465090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17177.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40465090 is about 6361.2176507332. The cubic root of 40465090 is about 343.3155728604.

It can be divided in two parts, 40 and 465090, that added together give a triangular number (465130 = T₉₆₄).

The spelling of 40465090 in words is "forty million, four hundred sixty-five thousand, ninety".