670454496 has 144 divisors (see below), whose sum is σ = 1993799808. Its totient is φ = 221616000.

The previous prime is 670454489. The next prime is 670454507. The reversal of 670454496 is 694454076.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×670454496² = 899018462413228032, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1173891 + ... + 1174461.

It is an arithmetic number, because the mean of its divisors is an integer number (13845832).

Almost surely, 2^670454496 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 670454496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (996899904).

670454496 is an abundant number, since it is smaller than the sum of its proper divisors (1323345312).

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

670454496 is a wasteful number, since it uses less digits than its factorization.

670454496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 670454496 is about 25893.1360788916. The cubic root of 670454496 is about 875.2318279876.

The spelling of 670454496 in words is "six hundred seventy million, four hundred fifty-four thousand, four hundred ninety-six".