72402246 has 24 divisors (see below), whose sum is σ = 179282064. Its totient is φ = 20686320.

The previous prime is 72402233. The next prime is 72402247. The reversal of 72402246 is 64220427.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72402247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287185 + ... + 287436.

It is an arithmetic number, because the mean of its divisors is an integer number (7470086).

Almost surely, 2^72402246 is an apocalyptic number.

72402246 is an abundant number, since it is smaller than the sum of its proper divisors (106879818).

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

72402246 is a wasteful number, since it uses less digits than its factorization.

72402246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574636 (or 574633 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 72402246 is about 8508.9509341634. The cubic root of 72402246 is about 416.7900535558.

The spelling of 72402246 in words is "seventy-two million, four hundred two thousand, two hundred forty-six".