615472452 has 192 divisors, whose sum is σ = 1919232000. Its totient is φ = 166852224.

The previous prime is 615472399. The next prime is 615472463. The reversal of 615472452 is 254274516.

It is a happy number.

615472452 is a `hidden beast` number, since 61 + 547 + 2 + 4 + 52 = 666.

615472452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1468699 + ... + 1469117.

It is an arithmetic number, because the mean of its divisors is an integer number (9996000).

Almost surely, 2^615472452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 615472452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (959616000).

615472452 is an abundant number, since it is smaller than the sum of its proper divisors (1303759548).

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

615472452 is a wasteful number, since it uses less digits than its factorization.

615472452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 527 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 615472452 is about 24808.7172582542. The cubic root of 615472452 is about 850.6212077129.

It can be divided in two parts, 6154 and 72452, that added together give a triangular number (78606 = T₃₉₆).

The spelling of 615472452 in words is "six hundred fifteen million, four hundred seventy-two thousand, four hundred fifty-two".