351420040 has 16 divisors (see below), whose sum is σ = 790695180. Its totient is φ = 140568000.

The previous prime is 351420031. The next prime is 351420071. The reversal of 351420040 is 40024153.

It can be written as a sum of positive squares in 2 ways, for example, as 349465636 + 1954404 = 18694^2 + 1398^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4392711 + ... + 4392790.

Almost surely, 2^351420040 is an apocalyptic number.

It is an amenable number.

351420040 is an abundant number, since it is smaller than the sum of its proper divisors (439275140).

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

351420040 is a wasteful number, since it uses less digits than its factorization.

351420040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8785512 (or 8785508 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 351420040 is about 18746.2006817382. The cubic root of 351420040 is about 705.6816772308.

Adding to 351420040 its reverse (40024153), we get a palindrome (391444193).

The spelling of 351420040 in words is "three hundred fifty-one million, four hundred twenty thousand, forty".