72426354 has 128 divisors (see below), whose sum is σ = 201277440. Its totient is φ = 16761600.

The previous prime is 72426329. The next prime is 72426371. The reversal of 72426354 is 45362427.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185992 + ... + 186380.

It is an arithmetic number, because the mean of its divisors is an integer number (1572480).

Almost surely, 2^72426354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72426354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100638720).

72426354 is an abundant number, since it is smaller than the sum of its proper divisors (128851086).

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

72426354 is a wasteful number, since it uses less digits than its factorization.

72426354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456.

The product of its digits is 40320, while the sum is 33.

The square root of 72426354 is about 8510.3674421261. The cubic root of 72426354 is about 416.8363083805.

It can be divided in two parts, 72 and 426354, that added together give a triangular number (426426 = T₉₂₃).

The spelling of 72426354 in words is "seventy-two million, four hundred twenty-six thousand, three hundred fifty-four".