40073390 has 64 divisors (see below), whose sum is σ = 86814720. Its totient is φ = 13029120.

The previous prime is 40073381. The next prime is 40073393. The reversal of 40073390 is 9337004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40073393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127874 + ... + 128186.

It is an arithmetic number, because the mean of its divisors is an integer number (1356480).

Almost surely, 2^40073390 is an apocalyptic number.

40073390 is an abundant number, since it is smaller than the sum of its proper divisors (46741330).

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

40073390 is a wasteful number, since it uses less digits than its factorization.

40073390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 40073390 is about 6330.3546504126. The cubic root of 40073390 is about 342.2042201056.

The spelling of 40073390 in words is "forty million, seventy-three thousand, three hundred ninety".