355487988 has 12 divisors (see below), whose sum is σ = 829472000. Its totient is φ = 118495992.

The previous prime is 355487981. The next prime is 355488031. The reversal of 355487988 is 889784553.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×355487988² = 252743419224576288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355487981) 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, 14811988 + ... + 14812011.

Almost surely, 2^355487988 is an apocalyptic number.

It is an amenable number.

355487988 is an abundant number, since it is smaller than the sum of its proper divisors (473984012).

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

355487988 is a wasteful number, since it uses less digits than its factorization.

355487988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29624006 (or 29624004 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 57.

The square root of 355487988 is about 18854.3890911374. The cubic root of 355487988 is about 708.3941675026.

The spelling of 355487988 in words is "three hundred fifty-five million, four hundred eighty-seven thousand, nine hundred eighty-eight".