615472830 has 168 divisors, whose sum is σ = 1933324632. Its totient is φ = 140597856.

The previous prime is 615472799. The next prime is 615472877. The reversal of 615472830 is 38274516.

615472830 is a `hidden beast` number, since 61 + 547 + 28 + 30 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 356349 + ... + 358071.

Almost surely, 2^615472830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 615472830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (966662316).

615472830 is an abundant number, since it is smaller than the sum of its proper divisors (1317851802).

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

615472830 is a wasteful number, since it uses less digits than its factorization.

615472830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762 (or 1740 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 615472830 is about 24808.7248765429. The cubic root of 615472830 is about 850.6213818527.

The spelling of 615472830 in words is "six hundred fifteen million, four hundred seventy-two thousand, eight hundred thirty".