72490232 has 32 divisors (see below), whose sum is σ = 139590000. Its totient is φ = 35278848.

The previous prime is 72490211. The next prime is 72490237. The reversal of 72490232 is 23209427.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 72490195 and 72490204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72490237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50744 + ... + 52152.

Almost surely, 2^72490232 is an apocalyptic number.

It is an amenable number.

72490232 is a deficient number, since it is larger than the sum of its proper divisors (67099768).

72490232 is a wasteful number, since it uses less digits than its factorization.

72490232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 72490232 is about 8514.1195669312. The cubic root of 72490232 is about 416.9588183237.

Adding to 72490232 its reverse (23209427), we get a palindrome (95699659).

The spelling of 72490232 in words is "seventy-two million, four hundred ninety thousand, two hundred thirty-two".