40469538 has 16 divisors (see below), whose sum is σ = 82661760. Its totient is φ = 13202736.

The previous prime is 40469461. The next prime is 40469543. The reversal of 40469538 is 83596404.

It is a junction number, because it is equal to n+sod(n) for n = 40469496 and 40469505.

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, 71473 + ... + 72036.

It is an arithmetic number, because the mean of its divisors is an integer number (5166360).

Almost surely, 2^40469538 is an apocalyptic number.

40469538 is an abundant number, since it is smaller than the sum of its proper divisors (42192222).

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

40469538 is a wasteful number, since it uses less digits than its factorization.

40469538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143561.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 40469538 is about 6361.5672597246. The cubic root of 40469538 is about 343.3281517007.

The spelling of 40469538 in words is "forty million, four hundred sixty-nine thousand, five hundred thirty-eight".