511240990 has 32 divisors (see below), whose sum is σ = 1002982176. Its totient is φ = 186487680.

The previous prime is 511240979. The next prime is 511240991. The reversal of 511240990 is 99042115.

It is a super-2 number, since 2×511240990² = 522734699712360200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511240991) 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, 12901 + ... + 34480.

It is an arithmetic number, because the mean of its divisors is an integer number (31343193).

Almost surely, 2^511240990 is an apocalyptic number.

511240990 is a deficient number, since it is larger than the sum of its proper divisors (491741186).

511240990 is a wasteful number, since it uses less digits than its factorization.

511240990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47484.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 511240990 is about 22610.6388675774. The cubic root of 511240990 is about 799.6044867855.

The spelling of 511240990 in words is "five hundred eleven million, two hundred forty thousand, nine hundred ninety".