670142632 has 8 divisors (see below), whose sum is σ = 1256517450. Its totient is φ = 335071312.

The previous prime is 670142611. The next prime is 670142633. The reversal of 670142632 is 236241076.

It can be written as a sum of positive squares in only one way, i.e., 611375076 + 58767556 = 24726^2 + 7666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×670142632² = 898182294447774848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 670142594 and 670142603.

It is not an unprimeable number, because it can be changed into a prime (670142633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41883907 + ... + 41883922.

Almost surely, 2^670142632 is an apocalyptic number.

It is an amenable number.

670142632 is a deficient number, since it is larger than the sum of its proper divisors (586374818).

670142632 is a wasteful number, since it uses less digits than its factorization.

670142632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83767835 (or 83767831 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 670142632 is about 25887.1132419202. The cubic root of 670142632 is about 875.0961013360.

The spelling of 670142632 in words is "six hundred seventy million, one hundred forty-two thousand, six hundred thirty-two".