40073745 has 8 divisors (see below), whose sum is σ = 64118016. Its totient is φ = 21372656.

The previous prime is 40073729. The next prime is 40073771. The reversal of 40073745 is 54737004.

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

It is a cyclic number.

It is not a de Polignac number, because 40073745 - 2⁴ = 40073729 is a prime.

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, 1335777 + ... + 1335806.

It is an arithmetic number, because the mean of its divisors is an integer number (8014752).

Almost surely, 2^40073745 is an apocalyptic number.

It is an amenable number.

40073745 is a deficient number, since it is larger than the sum of its proper divisors (24044271).

40073745 is a wasteful number, since it uses less digits than its factorization.

40073745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671591.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 40073745 is about 6330.3826898538. The cubic root of 40073745 is about 342.2052306027.

The spelling of 40073745 in words is "forty million, seventy-three thousand, seven hundred forty-five".