395073720 has 64 divisors (see below), whose sum is σ = 1316916000. Its totient is φ = 105352704.

The previous prime is 395073709. The next prime is 395073739. The reversal of 395073720 is 27370593.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181825 + ... + 183984.

Almost surely, 2^395073720 is an apocalyptic number.

395073720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

395073720 is an abundant number, since it is smaller than the sum of its proper divisors (921842280).

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

395073720 is a wasteful number, since it uses less digits than its factorization.

395073720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365829 (or 365819 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 395073720 is about 19876.4614557018. The cubic root of 395073720 is about 733.7690349292.

The spelling of 395073720 in words is "three hundred ninety-five million, seventy-three thousand, seven hundred twenty".