704993940 has 144 divisors (see below), whose sum is σ = 2522956800. Its totient is φ = 155934720.

The previous prime is 704993911. The next prime is 704993957. The reversal of 704993940 is 49399407.

704993940 is a `hidden beast` number, since 70 + 499 + 3 + 94 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30036 + ... + 48084.

Almost surely, 2^704993940 is an apocalyptic number.

704993940 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 704993940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1261478400).

704993940 is an abundant number, since it is smaller than the sum of its proper divisors (1817962860).

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

704993940 is a wasteful number, since it uses less digits than its factorization.

704993940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18102 (or 18097 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 704993940 is about 26551.7219780563. The cubic root of 704993940 is about 890.0104951841.

The spelling of 704993940 in words is "seven hundred four million, nine hundred ninety-three thousand, nine hundred forty".