1400252741 has 4 divisors (see below), whose sum is σ = 1402431072. Its totient is φ = 1398074412.

The previous prime is 1400252729. The next prime is 1400252767. The reversal of 1400252741 is 1472520041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400252741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1400252741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400252701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1088201 + ... + 1089486.

It is an arithmetic number, because the mean of its divisors is an integer number (350607768).

Almost surely, 2^1400252741 is an apocalyptic number.

It is an amenable number.

1400252741 is a deficient number, since it is larger than the sum of its proper divisors (2178331).

1400252741 is an equidigital number, since it uses as much as digits as its factorization.

1400252741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178330.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 1400252741 is about 37419.9511090007. The cubic root of 1400252741 is about 1118.7562567360.

Adding to 1400252741 its reverse (1472520041), we get a palindrome (2872772782).

The spelling of 1400252741 in words is "one billion, four hundred million, two hundred fifty-two thousand, seven hundred forty-one".