72401435 has 4 divisors (see below), whose sum is σ = 86881728. Its totient is φ = 57921144.

The previous prime is 72401431. The next prime is 72401471. The reversal of 72401435 is 53410427.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72401435 - 2² = 72401431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72401431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7240139 + ... + 7240148.

It is an arithmetic number, because the mean of its divisors is an integer number (21720432).

Almost surely, 2^72401435 is an apocalyptic number.

72401435 is a deficient number, since it is larger than the sum of its proper divisors (14480293).

72401435 is a wasteful number, since it uses less digits than its factorization.

72401435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14480292.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 72401435 is about 8508.9032783315. The cubic root of 72401435 is about 416.7884973518.

The spelling of 72401435 in words is "seventy-two million, four hundred one thousand, four hundred thirty-five".