355380640 has 24 divisors (see below), whose sum is σ = 839587140. Its totient is φ = 142152192.

The previous prime is 355380637. The next prime is 355380653. The reversal of 355380640 is 46083553.

It can be written as a sum of positive squares in 2 ways, for example, as 291316624 + 64064016 = 17068^2 + 8004^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 355380596 and 355380605.

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, 1110405 + ... + 1110724.

Almost surely, 2^355380640 is an apocalyptic number.

It is an amenable number.

355380640 is an abundant number, since it is smaller than the sum of its proper divisors (484206500).

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

355380640 is a wasteful number, since it uses less digits than its factorization.

355380640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221144 (or 2221136 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 355380640 is about 18851.5421119865. The cubic root of 355380640 is about 708.3228548700.

The spelling of 355380640 in words is "three hundred fifty-five million, three hundred eighty thousand, six hundred forty".