40749546 has 8 divisors (see below), whose sum is σ = 81499104. Its totient is φ = 13583180.

The previous prime is 40749523. The next prime is 40749551. The reversal of 40749546 is 64594704.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

40749546 is an admirable number.

It is a super-2 number, since 2×40749546² = 3321050998412232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3395790 + ... + 3395801.

It is an arithmetic number, because the mean of its divisors is an integer number (10187388).

Almost surely, 2^40749546 is an apocalyptic number.

40749546 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40749546 is a wasteful number, since it uses less digits than its factorization.

40749546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6791596.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 40749546 is about 6383.5371072784. The cubic root of 40749546 is about 344.1181595623.

The spelling of 40749546 in words is "forty million, seven hundred forty-nine thousand, five hundred forty-six".