1197902940 has 48 divisors (see below), whose sum is σ = 3612140448. Its totient is φ = 294868224.

The previous prime is 1197902921. The next prime is 1197903001. The reversal of 1197902940 is 492097911.

It is a junction number, because it is equal to n+sod(n) for n = 1197902892 and 1197902901.

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, 767107 + ... + 768666.

It is an arithmetic number, because the mean of its divisors is an integer number (75252926).

Almost surely, 2^1197902940 is an apocalyptic number.

1197902940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1197902940 is an abundant number, since it is smaller than the sum of its proper divisors (2414237508).

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

1197902940 is a wasteful number, since it uses less digits than its factorization.

1197902940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535798 (or 1535796 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 1197902940 is about 34610.7344620134. The cubic root of 1197902940 is about 1062.0391919173.

The spelling of 1197902940 in words is "one billion, one hundred ninety-seven million, nine hundred two thousand, nine hundred forty".