40073970 has 32 divisors (see below), whose sum is σ = 96344640. Its totient is φ = 10667840.

The previous prime is 40073963. The next prime is 40073987. The reversal of 40073970 is 7937004.

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

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, 31201 + ... + 32459.

It is an arithmetic number, because the mean of its divisors is an integer number (3010770).

Almost surely, 2^40073970 is an apocalyptic number.

40073970 is an abundant number, since it is smaller than the sum of its proper divisors (56270670).

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

40073970 is a wasteful number, since it uses less digits than its factorization.

40073970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 40073970 is about 6330.4004612663. The cubic root of 40073970 is about 342.2058710556.

The spelling of 40073970 in words is "forty million, seventy-three thousand, nine hundred seventy".