1902017070 has 24 divisors (see below), whose sum is σ = 4945244616. Its totient is φ = 507204528.

The previous prime is 1902017063. The next prime is 1902017081. The reversal of 1902017070 is 707102091.

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 11 ways as a sum of consecutive naturals, for example, 10566672 + ... + 10566851.

It is an arithmetic number, because the mean of its divisors is an integer number (206051859).

Almost surely, 2^1902017070 is an apocalyptic number.

1902017070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1902017070 is an abundant number, since it is smaller than the sum of its proper divisors (3043227546).

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

1902017070 is a wasteful number, since it uses less digits than its factorization.

1902017070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21133536 (or 21133533 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 1902017070 is about 43612.1206776281. The cubic root of 1902017070 is about 1239.0004670640. Note that the first 3 decimals are identical.

The spelling of 1902017070 in words is "one billion, nine hundred two million, seventeen thousand, seventy".