40749510 has 32 divisors (see below), whose sum is σ = 103552992. Its totient is φ = 10227200.

The previous prime is 40749497. The next prime is 40749521. The reversal of 40749510 is 1594704.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39441 + ... + 40460.

It is an arithmetic number, because the mean of its divisors is an integer number (3236031).

Almost surely, 2^40749510 is an apocalyptic number.

40749510 is an abundant number, since it is smaller than the sum of its proper divisors (62803482).

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

40749510 is a wasteful number, since it uses less digits than its factorization.

40749510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79928.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 40749510 is about 6383.5342875244. The cubic root of 40749510 is about 344.1180582257.

The spelling of 40749510 in words is "forty million, seven hundred forty-nine thousand, five hundred ten".