1402555220 has 48 divisors (see below), whose sum is σ = 3261117888. Its totient is φ = 502402560.

The previous prime is 1402555181. The next prime is 1402555279. The reversal of 1402555220 is 225552041.

It is a super-2 number, since 2×1402555220² = 3934322290298496800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1402555220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32837 + ... + 62316.

It is an arithmetic number, because the mean of its divisors is an integer number (67939956).

Almost surely, 2^1402555220 is an apocalyptic number.

1402555220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402555220 is an abundant number, since it is smaller than the sum of its proper divisors (1858562668).

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

1402555220 is a wasteful number, since it uses less digits than its factorization.

1402555220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95240 (or 95238 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1402555220 is about 37450.7038652146. The cubic root of 1402555220 is about 1119.3691228079.

The spelling of 1402555220 in words is "one billion, four hundred two million, five hundred fifty-five thousand, two hundred twenty".