1901195490 has 16 divisors (see below), whose sum is σ = 4562869248. Its totient is φ = 506985456.

The previous prime is 1901195477. The next prime is 1901195501. The reversal of 1901195490 is 945911091.

It is a super-2 number, since 2×1901195490² = 7229088582392680200, which contains 22 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, 31686562 + ... + 31686621.

It is an arithmetic number, because the mean of its divisors is an integer number (285179328).

Almost surely, 2^1901195490 is an apocalyptic number.

1901195490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1901195490 is an abundant number, since it is smaller than the sum of its proper divisors (2661673758).

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

1901195490 is a wasteful number, since it uses less digits than its factorization.

1901195490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63373193.

The product of its (nonzero) digits is 14580, while the sum is 39.

The square root of 1901195490 is about 43602.7004897632. The cubic root of 1901195490 is about 1238.8220451452.

The spelling of 1901195490 in words is "one billion, nine hundred one million, one hundred ninety-five thousand, four hundred ninety".