1900214520 has 64 divisors (see below), whose sum is σ = 5725620000. Its totient is φ = 504503808.

The previous prime is 1900214509. The next prime is 1900214521. The reversal of 1900214520 is 254120091.

It is a super-2 number, since 2×1900214520² = 7221630444037660800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900214521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7095 + ... + 62054.

Almost surely, 2^1900214520 is an apocalyptic number.

1900214520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1900214520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2862810000).

1900214520 is an abundant number, since it is smaller than the sum of its proper divisors (3825405480).

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

1900214520 is a wasteful number, since it uses less digits than its factorization.

1900214520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69392 (or 69388 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1900214520 is about 43591.4500791153. The cubic root of 1900214520 is about 1238.6089412779.

The spelling of 1900214520 in words is "one billion, nine hundred million, two hundred fourteen thousand, five hundred twenty".