351830649 has 4 divisors (see below), whose sum is σ = 469107536. Its totient is φ = 234553764.

The previous prime is 351830641. The next prime is 351830651. The reversal of 351830649 is 946038153.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 351830649 - 2³ = 351830641 is a prime.

It is a super-2 number, since 2×351830649² = 247569611151522402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351830641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58638439 + ... + 58638444.

It is an arithmetic number, because the mean of its divisors is an integer number (117276884).

Almost surely, 2^351830649 is an apocalyptic number.

It is an amenable number.

351830649 is a deficient number, since it is larger than the sum of its proper divisors (117276887).

351830649 is a wasteful number, since it uses less digits than its factorization.

351830649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117276886.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 351830649 is about 18757.1492770090. The cubic root of 351830649 is about 705.9564163215.

The spelling of 351830649 in words is "three hundred fifty-one million, eight hundred thirty thousand, six hundred forty-nine".