1293701990 has 32 divisors (see below), whose sum is σ = 2664382464. Its totient is φ = 443046240.

The previous prime is 1293701971. The next prime is 1293702017. The reversal of 1293701990 is 991073921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53627 + ... + 73913.

It is an arithmetic number, because the mean of its divisors is an integer number (83261952).

Almost surely, 2^1293701990 is an apocalyptic number.

1293701990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1293701990 is an abundant number, since it is smaller than the sum of its proper divisors (1370680474).

1293701990 is a wasteful number, since it uses less digits than its factorization.

1293701990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 1293701990 is about 35968.0690335192. The cubic root of 1293701990 is about 1089.6275668382.

The spelling of 1293701990 in words is "one billion, two hundred ninety-three million, seven hundred one thousand, nine hundred ninety".