1927800252 has 72 divisors (see below), whose sum is σ = 5698749056. Its totient is φ = 537987744.

The previous prime is 1927800191. The next prime is 1927800283. The reversal of 1927800252 is 2520087291.

It is a super-2 number, since 2×1927800252² = 7432827623222527008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78118 + ... + 99789.

Almost surely, 2^1927800252 is an apocalyptic number.

1927800252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1927800252 is an abundant number, since it is smaller than the sum of its proper divisors (3770948804).

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

1927800252 is a wasteful number, since it uses less digits than its factorization.

1927800252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177967 (or 177962 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1927800252 is about 43906.7221732618. The cubic root of 1927800252 is about 1244.5738668389.

The spelling of 1927800252 in words is "one billion, nine hundred twenty-seven million, eight hundred thousand, two hundred fifty-two".