620614532 has 12 divisors (see below), whose sum is σ = 1095687516. Its totient is φ = 307560960.

The previous prime is 620614523. The next prime is 620614601. The reversal of 620614532 is 235416026.

It can be written as a sum of positive squares in 2 ways, for example, as 208686916 + 411927616 = 14446^2 + 20296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 620614495 and 620614504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686069 + ... + 686972.

It is an arithmetic number, because the mean of its divisors is an integer number (91307293).

Almost surely, 2^620614532 is an apocalyptic number.

It is an amenable number.

620614532 is a deficient number, since it is larger than the sum of its proper divisors (475072984).

620614532 is a wasteful number, since it uses less digits than its factorization.

620614532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373158 (or 1373156 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 620614532 is about 24912.1362391907. The cubic root of 620614532 is about 852.9835325044.

The spelling of 620614532 in words is "six hundred twenty million, six hundred fourteen thousand, five hundred thirty-two".