1642245970 has 16 divisors (see below), whose sum is σ = 2956668480. Its totient is φ = 656759344.

The previous prime is 1642245953. The next prime is 1642246007. The reversal of 1642245970 is 795422461.

It is a super-3 number, since 3×1642245970³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41829 + ... + 70951.

It is an arithmetic number, because the mean of its divisors is an integer number (184791780).

Almost surely, 2^1642245970 is an apocalyptic number.

1642245970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1642245970 is a deficient number, since it is larger than the sum of its proper divisors (1314422510).

1642245970 is a wasteful number, since it uses less digits than its factorization.

1642245970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34769.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 1642245970 is about 40524.6341130922. The cubic root of 1642245970 is about 1179.8117984824.

The spelling of 1642245970 in words is "one billion, six hundred forty-two million, two hundred forty-five thousand, nine hundred seventy".