2402051381 has 2 divisors, whose sum is σ = 2402051382. Its totient is φ = 2402051380.

The previous prime is 2402051369. The next prime is 2402051389. The reversal of 2402051381 is 1831502042.

2402051381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1596002500 + 806048881 = 39950^2 + 28391^2 .

It is a cyclic number.

It is not a de Polignac number, because 2402051381 - 2⁶ = 2402051317 is a prime.

It is a super-2 number, since 2×2402051381² = 11539701673928014322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2402051381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2402051389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201025690 + 1201025691.

It is an arithmetic number, because the mean of its divisors is an integer number (1201025691).

Almost surely, 2^2402051381 is an apocalyptic number.

It is an amenable number.

2402051381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2402051381 is an equidigital number, since it uses as much as digits as its factorization.

2402051381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2402051381 is about 49010.7272033378. The cubic root of 2402051381 is about 1339.2472532084.

The spelling of 2402051381 in words is "two billion, four hundred two million, fifty-one thousand, three hundred eighty-one".