1902953420 has 24 divisors (see below), whose sum is σ = 4016292000. Its totient is φ = 757354752.

The previous prime is 1902953399. The next prime is 1902953447. The reversal of 1902953420 is 243592091.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235085 + ... + 243044.

It is an arithmetic number, because the mean of its divisors is an integer number (167345500).

Almost surely, 2^1902953420 is an apocalyptic number.

1902953420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1902953420 is an abundant number, since it is smaller than the sum of its proper divisors (2113338580).

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

1902953420 is a wasteful number, since it uses less digits than its factorization.

1902953420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478337 (or 478335 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 1902953420 is about 43622.8543311875. The cubic root of 1902953420 is about 1239.2037508623.

The spelling of 1902953420 in words is "one billion, nine hundred two million, nine hundred fifty-three thousand, four hundred twenty".