5400990 has 48 divisors (see below), whose sum is σ = 16050528. Its totient is φ = 1234368.

The previous prime is 5400979. The next prime is 5401003. The reversal of 5400990 is 990045.

5400990 = 66² + 67² + ... + 254².

It is a happy number.

5400990 is a modest number, since divided by 990 gives 540 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3657 + ... + 4916.

It is an arithmetic number, because the mean of its divisors is an integer number (334386).

Almost surely, 2^5400990 is an apocalyptic number.

5400990 is an abundant number, since it is smaller than the sum of its proper divisors (10649538).

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

5400990 is a wasteful number, since it uses less digits than its factorization.

5400990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8593 (or 8590 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 5400990 is about 2324.0030120462. The cubic root of 5400990 is about 175.4517850360.

The spelling of 5400990 in words is "five million, four hundred thousand, nine hundred ninety".