617272542 has 32 divisors (see below), whose sum is σ = 1394211360. Its totient is φ = 202383360.

The previous prime is 617272531. The next prime is 617272547. The reversal of 617272542 is 245272716.

It is a happy number.

It is a super-2 number, since 2×617272542² = 762050782214283528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 617272497 and 617272506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617272547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90403 + ... + 96990.

It is an arithmetic number, because the mean of its divisors is an integer number (43569105).

Almost surely, 2^617272542 is an apocalyptic number.

617272542 is an abundant number, since it is smaller than the sum of its proper divisors (776938818).

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

617272542 is a wasteful number, since it uses less digits than its factorization.

617272542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187465 (or 187459 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 617272542 is about 24844.9701549428. The cubic root of 617272542 is about 851.4496793308.

The spelling of 617272542 in words is "six hundred seventeen million, two hundred seventy-two thousand, five hundred forty-two".