1402087280 has 40 divisors (see below), whose sum is σ = 3556205424. Its totient is φ = 509849600.

The previous prime is 1402087279. The next prime is 1402087289. The reversal of 1402087280 is 827802041.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402087289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795761 + ... + 797520.

Almost surely, 2^1402087280 is an apocalyptic number.

1402087280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402087280 is an abundant number, since it is smaller than the sum of its proper divisors (2154118144).

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

1402087280 is a wasteful number, since it uses less digits than its factorization.

1402087280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593305 (or 1593299 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 1402087280 is about 37444.4559314193. The cubic root of 1402087280 is about 1119.2446224572.

The spelling of 1402087280 in words is "one billion, four hundred two million, eighty-seven thousand, two hundred eighty".