355642040 has 64 divisors (see below), whose sum is σ = 912461760. Its totient is φ = 123586560.

The previous prime is 355642003. The next prime is 355642043. The reversal of 355642040 is 40246553.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 355641994 and 355642012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355642043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11276 + ... + 28955.

It is an arithmetic number, because the mean of its divisors is an integer number (14257215).

Almost surely, 2^355642040 is an apocalyptic number.

It is an amenable number.

355642040 is an abundant number, since it is smaller than the sum of its proper divisors (556819720).

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

355642040 is a wasteful number, since it uses less digits than its factorization.

355642040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40272 (or 40268 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 355642040 is about 18858.4739573487. The cubic root of 355642040 is about 708.4964811127.

Adding to 355642040 its reverse (40246553), we get a palindrome (395888593).

The spelling of 355642040 in words is "three hundred fifty-five million, six hundred forty-two thousand, forty".