1902919124 has 12 divisors (see below), whose sum is σ = 3330485844. Its totient is φ = 951351744.

The previous prime is 1902919111. The next prime is 1902919133. The reversal of 1902919124 is 4219192091.

It can be written as a sum of positive squares in 2 ways, for example, as 558376900 + 1344542224 = 23630^2 + 36668^2 .

It is a super-2 number, since 2×1902919124² = 7242202384969854752, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 23072 + ... + 65864.

It is an arithmetic number, because the mean of its divisors is an integer number (277540487).

Almost surely, 2^1902919124 is an apocalyptic number.

It is an amenable number.

1902919124 is a deficient number, since it is larger than the sum of its proper divisors (1427566720).

1902919124 is a wasteful number, since it uses less digits than its factorization.

1902919124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53914 (or 53912 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1902919124 is about 43622.4612327182. The cubic root of 1902919124 is about 1239.1963062963.

The spelling of 1902919124 in words is "one billion, nine hundred two million, nine hundred nineteen thousand, one hundred twenty-four".