906549490 has 96 divisors (see below), whose sum is σ = 2097964800. Its totient is φ = 278853120.

The previous prime is 906549433. The next prime is 906549493. The reversal of 906549490 is 94945609.

906549490 is a nontrivial binomial coefficient, being equal to C(42581, 2).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 906549490.

It is not an unprimeable number, because it can be changed into a prime (906549493) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 424746 + ... + 426874.

It is an arithmetic number, because the mean of its divisors is an integer number (21853800).

Almost surely, 2^906549490 is an apocalyptic number.

906549490 is the 42580-th triangular number.

906549490 is the 14194-th centered nonagonal number.

906549490 is an abundant number, since it is smaller than the sum of its proper divisors (1191415310).

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

906549490 is a wasteful number, since it uses less digits than its factorization.

906549490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240 (or 2233 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 906549490 is about 30108.9602942380. The cubic root of 906549490 is about 967.8257496893.

The spelling of 906549490 in words is "nine hundred six million, five hundred forty-nine thousand, four hundred ninety".