1402028400 has 60 divisors (see below), whose sum is σ = 4491168152. Its totient is φ = 373873920.

The previous prime is 1402028393. The next prime is 1402028423. The reversal of 1402028400 is 48202041.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 582979 + ... + 585378.

Almost surely, 2^1402028400 is an apocalyptic number.

1402028400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402028400 is an abundant number, since it is smaller than the sum of its proper divisors (3089139752).

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

1402028400 is a wasteful number, since it uses less digits than its factorization.

1402028400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168378 (or 1168367 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1402028400 is about 37443.6696919519. The cubic root of 1402028400 is about 1119.2289548530.

The spelling of 1402028400 in words is "one billion, four hundred two million, twenty-eight thousand, four hundred".