40073451 has 16 divisors (see below), whose sum is σ = 61357440. Its totient is φ = 23008320.

The previous prime is 40073443. The next prime is 40073477. The reversal of 40073451 is 15437004.

It is not a de Polignac number, because 40073451 - 2³ = 40073443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40073431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31330 + ... + 32583.

It is an arithmetic number, because the mean of its divisors is an integer number (3834840).

Almost surely, 2^40073451 is an apocalyptic number.

40073451 is a deficient number, since it is larger than the sum of its proper divisors (21283989).

40073451 is a wasteful number, since it uses less digits than its factorization.

40073451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63946.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 40073451 is about 6330.3594684662. The cubic root of 40073451 is about 342.2043937407.

The spelling of 40073451 in words is "forty million, seventy-three thousand, four hundred fifty-one".