621465032 has 32 divisors (see below), whose sum is σ = 1184990520. Its totient is φ = 305510400.

The previous prime is 621465007. The next prime is 621465049. The reversal of 621465032 is 230564126.

It can be written as a sum of positive squares in 4 ways, for example, as 235499716 + 385965316 = 15346^2 + 19646^2 .

It is a super-2 number, since 2×621465032² = 772437571997522048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 621464986 and 621465004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119282 + ... + 124382.

Almost surely, 2^621465032 is an apocalyptic number.

It is an amenable number.

621465032 is a deficient number, since it is larger than the sum of its proper divisors (563525488).

621465032 is a wasteful number, since it uses less digits than its factorization.

621465032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361 (or 5357 counting only the distinct ones).

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

The square root of 621465032 is about 24929.2003882997. The cubic root of 621465032 is about 853.3730020350.

The spelling of 621465032 in words is "six hundred twenty-one million, four hundred sixty-five thousand, thirty-two".