1974197070 has 64 divisors (see below), whose sum is σ = 5268421440. Its totient is φ = 526063104.

The previous prime is 1974197051. The next prime is 1974197083. The reversal of 1974197070 is 707914791.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 709522 + ... + 712298.

It is an arithmetic number, because the mean of its divisors is an integer number (82319085).

Almost surely, 2^1974197070 is an apocalyptic number.

1974197070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1974197070 is an abundant number, since it is smaller than the sum of its proper divisors (3294224370).

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

1974197070 is a wasteful number, since it uses less digits than its factorization.

1974197070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426 (or 5420 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 45.

The square root of 1974197070 is about 44431.9374999560. The cubic root of 1974197070 is about 1254.4793044258.

The spelling of 1974197070 in words is "one billion, nine hundred seventy-four million, one hundred ninety-seven thousand, seventy".