1292938452 has 72 divisors (see below), whose sum is σ = 3633244160. Its totient is φ = 384989760.

The previous prime is 1292938447. The next prime is 1292938469. The reversal of 1292938452 is 2548392921.

It is a junction number, because it is equal to n+sod(n) for n = 1292938398 and 1292938407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30052 + ... + 59067.

Almost surely, 2^1292938452 is an apocalyptic number.

1292938452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1292938452 is an abundant number, since it is smaller than the sum of its proper divisors (2340305708).

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

1292938452 is a wasteful number, since it uses less digits than its factorization.

1292938452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89173 (or 89168 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 1292938452 is about 35957.4533581009. The cubic root of 1292938452 is about 1089.4131599684.

The spelling of 1292938452 in words is "one billion, two hundred ninety-two million, nine hundred thirty-eight thousand, four hundred fifty-two".