1498972640 has 48 divisors (see below), whose sum is σ = 3863265840. Its totient is φ = 545080320.

The previous prime is 1498972627. The next prime is 1498972649. The reversal of 1498972640 is 462798941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1498972649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424085 + ... + 427604.

It is an arithmetic number, because the mean of its divisors is an integer number (80484705).

Almost surely, 2^1498972640 is an apocalyptic number.

1498972640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1498972640 is an abundant number, since it is smaller than the sum of its proper divisors (2364293200).

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

1498972640 is a wasteful number, since it uses less digits than its factorization.

1498972640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851715 (or 851707 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 1498972640 is about 38716.5680297208. The cubic root of 1498972640 is about 1144.4528420605.

The spelling of 1498972640 in words is "one billion, four hundred ninety-eight million, nine hundred seventy-two thousand, six hundred forty".