1293651942 has 32 divisors (see below), whose sum is σ = 2898802944. Its totient is φ = 381420000.

The previous prime is 1293651937. The next prime is 1293651943. The reversal of 1293651942 is 2491563921.

It is a junction number, because it is equal to n+sod(n) for n = 1293651894 and 1293651903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293651943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262434 + ... + 267317.

It is an arithmetic number, because the mean of its divisors is an integer number (90587592).

Almost surely, 2^1293651942 is an apocalyptic number.

1293651942 is an abundant number, since it is smaller than the sum of its proper divisors (1605151002).

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

1293651942 is a wasteful number, since it uses less digits than its factorization.

1293651942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529804.

The product of its digits is 116640, while the sum is 42.

The square root of 1293651942 is about 35967.3732985883. The cubic root of 1293651942 is about 1089.6135155899.

The spelling of 1293651942 in words is "one billion, two hundred ninety-three million, six hundred fifty-one thousand, nine hundred forty-two".