1400002455 has 32 divisors (see below), whose sum is σ = 2268278208. Its totient is φ = 737280000.

The previous prime is 1400002451. The next prime is 1400002459. The reversal of 1400002455 is 5542000041.

It is an interprime number because it is at equal distance from previous prime (1400002451) and next prime (1400002459).

It is not a de Polignac number, because 1400002455 - 2² = 1400002451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400002451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 873655 + ... + 875255.

It is an arithmetic number, because the mean of its divisors is an integer number (70883694).

Almost surely, 2^1400002455 is an apocalyptic number.

1400002455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1400002455 is a deficient number, since it is larger than the sum of its proper divisors (868275753).

1400002455 is a wasteful number, since it uses less digits than its factorization.

1400002455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1400002455 is about 37416.6066740425. The cubic root of 1400002455 is about 1118.6895959813.

Adding to 1400002455 its reverse (5542000041), we get a palindrome (6942002496).

The spelling of 1400002455 in words is "one billion, four hundred million, two thousand, four hundred fifty-five".