40742628 has 12 divisors (see below), whose sum is σ = 95066160. Its totient is φ = 13580872.

The previous prime is 40742617. The next prime is 40742657. The reversal of 40742628 is 82624704.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1697598 + ... + 1697621.

It is an arithmetic number, because the mean of its divisors is an integer number (7922180).

Almost surely, 2^40742628 is an apocalyptic number.

It is an amenable number.

40742628 is an abundant number, since it is smaller than the sum of its proper divisors (54323532).

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

40742628 is a wasteful number, since it uses less digits than its factorization.

40742628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395226 (or 3395224 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 40742628 is about 6382.9952216808. The cubic root of 40742628 is about 344.0986849555.

The spelling of 40742628 in words is "forty million, seven hundred forty-two thousand, six hundred twenty-eight".