670439560 has 48 divisors (see below), whose sum is σ = 1754778060. Its totient is φ = 229864320.

The previous prime is 670439551. The next prime is 670439579. The reversal of 670439560 is 65934076.

It can be written as a sum of positive squares in 2 ways, for example, as 664299076 + 6140484 = 25774^2 + 2478^2 .

It is a super-2 number, since 2×670439560² = 898978407225987200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169071 + ... + 172990.

Almost surely, 2^670439560 is an apocalyptic number.

It is an amenable number.

670439560 is an abundant number, since it is smaller than the sum of its proper divisors (1084338500).

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

670439560 is a wasteful number, since it uses less digits than its factorization.

670439560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342086 (or 342075 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 670439560 is about 25892.8476610820. The cubic root of 670439560 is about 875.2253286354.

It can be divided in two parts, 6704 and 39560, that added together give a palindrome (46264).

The spelling of 670439560 in words is "six hundred seventy million, four hundred thirty-nine thousand, five hundred sixty".