40751664 has 20 divisors (see below), whose sum is σ = 105275256. Its totient is φ = 13583872.

The previous prime is 40751621. The next prime is 40751693. The reversal of 40751664 is 46615704.

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, 424449 + ... + 424544.

Almost surely, 2^40751664 is an apocalyptic number.

It is an amenable number.

40751664 is an abundant number, since it is smaller than the sum of its proper divisors (64523592).

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

40751664 is a wasteful number, since it uses less digits than its factorization.

40751664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849004 (or 848998 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 40751664 is about 6383.7030006102. The cubic root of 40751664 is about 344.1241214253.

The spelling of 40751664 in words is "forty million, seven hundred fifty-one thousand, six hundred sixty-four".