72461403 has 24 divisors (see below), whose sum is σ = 120008928. Its totient is φ = 41271552.

The previous prime is 72461399. The next prime is 72461413. The reversal of 72461403 is 30416427.

It is not a de Polignac number, because 72461403 - 2² = 72461399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72461413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19525 + ... + 22937.

It is an arithmetic number, because the mean of its divisors is an integer number (5000372).

Almost surely, 2^72461403 is an apocalyptic number.

72461403 is a deficient number, since it is larger than the sum of its proper divisors (47547525).

72461403 is a wasteful number, since it uses less digits than its factorization.

72461403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763 (or 3760 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 72461403 is about 8512.4263873469. The cubic root of 72461403 is about 416.9035368543.

It can be divided in two parts, 7246 and 1403, that added together give a square (8649 = 93²).

The spelling of 72461403 in words is "seventy-two million, four hundred sixty-one thousand, four hundred three".