1400142434 has 32 divisors (see below), whose sum is σ = 2213899776. Its totient is φ = 662840640.

The previous prime is 1400142391. The next prime is 1400142437. The reversal of 1400142434 is 4342410041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1400142437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3325544 + ... + 3325964.

It is an arithmetic number, because the mean of its divisors is an integer number (69184368).

Almost surely, 2^1400142434 is an apocalyptic number.

1400142434 is a deficient number, since it is larger than the sum of its proper divisors (813757342).

1400142434 is a wasteful number, since it uses less digits than its factorization.

1400142434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1400142434 is about 37418.4771737173. The cubic root of 1400142434 is about 1118.7268787332.

Adding to 1400142434 its reverse (4342410041), we get a palindrome (5742552475).

The spelling of 1400142434 in words is "one billion, four hundred million, one hundred forty-two thousand, four hundred thirty-four".