1400513440 has 48 divisors (see below), whose sum is σ = 3385676448. Its totient is φ = 547174656.

The previous prime is 1400513417. The next prime is 1400513461. The reversal of 1400513440 is 443150041.

It is a super-2 number, since 2×1400513440² = 3922875791241267200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94902 + ... + 108661.

It is an arithmetic number, because the mean of its divisors is an integer number (70534926).

Almost surely, 2^1400513440 is an apocalyptic number.

1400513440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400513440 is an abundant number, since it is smaller than the sum of its proper divisors (1985163008).

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

1400513440 is a wasteful number, since it uses less digits than its factorization.

1400513440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203621 (or 203613 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1400513440 is about 37423.4343693895. The cubic root of 1400513440 is about 1118.8256824262.

Adding to 1400513440 its reverse (443150041), we get a palindrome (1843663481).

The spelling of 1400513440 in words is "one billion, four hundred million, five hundred thirteen thousand, four hundred forty".