396955742 has 4 divisors (see below), whose sum is σ = 595433616. Its totient is φ = 198477870.

The previous prime is 396955739. The next prime is 396955751. The reversal of 396955742 is 247559693.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×396955742² = 315147722213541128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99238934 + ... + 99238937.

It is an arithmetic number, because the mean of its divisors is an integer number (148858404).

Almost surely, 2^396955742 is an apocalyptic number.

396955742 is a deficient number, since it is larger than the sum of its proper divisors (198477874).

396955742 is a wasteful number, since it uses less digits than its factorization.

396955742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198477873.

The product of its digits is 2041200, while the sum is 50.

The square root of 396955742 is about 19923.7481915427. The cubic root of 396955742 is about 734.9323472678.

The spelling of 396955742 in words is "three hundred ninety-six million, nine hundred fifty-five thousand, seven hundred forty-two".