1975498240 has 40 divisors (see below), whose sum is σ = 4736571840. Its totient is φ = 790198272.

The previous prime is 1975498207. The next prime is 1975498279. The reversal of 1975498240 is 428945791.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383280 + ... + 388399.

It is an arithmetic number, because the mean of its divisors is an integer number (118414296).

Almost surely, 2^1975498240 is an apocalyptic number.

1975498240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1975498240 is an abundant number, since it is smaller than the sum of its proper divisors (2761073600).

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

1975498240 is an frugal number, since it uses more digits than its factorization.

1975498240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771702 (or 771686 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 1975498240 is about 44446.5773710417. The cubic root of 1975498240 is about 1254.7548480691.

The spelling of 1975498240 in words is "one billion, nine hundred seventy-five million, four hundred ninety-eight thousand, two hundred forty".