391437002 has 32 divisors (see below), whose sum is σ = 682478784. Its totient is φ = 166406400.

The previous prime is 391436999. The next prime is 391437037. The reversal of 391437002 is 200734193.

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, 57752 + ... + 64172.

It is an arithmetic number, because the mean of its divisors is an integer number (21327462).

Almost surely, 2^391437002 is an apocalyptic number.

391437002 is a deficient number, since it is larger than the sum of its proper divisors (291041782).

391437002 is a wasteful number, since it uses less digits than its factorization.

391437002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6614.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 391437002 is about 19784.7669180104. The cubic root of 391437002 is about 731.5106030803.

The spelling of 391437002 in words is "three hundred ninety-one million, four hundred thirty-seven thousand, two".