1301663402 has 32 divisors (see below), whose sum is σ = 2216761344. Its totient is φ = 569001600.

The previous prime is 1301663401. The next prime is 1301663437. The reversal of 1301663402 is 2043661031.

It is a super-2 number, since 2×1301663402² = 3388655224212427208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1301663401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20702 + ... + 55062.

It is an arithmetic number, because the mean of its divisors is an integer number (69273792).

Almost surely, 2^1301663402 is an apocalyptic number.

1301663402 is a deficient number, since it is larger than the sum of its proper divisors (915097942).

1301663402 is a wasteful number, since it uses less digits than its factorization.

1301663402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34454.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1301663402 is about 36078.5726158893. The cubic root of 1301663402 is about 1091.8581782794.

The spelling of 1301663402 in words is "one billion, three hundred one million, six hundred sixty-three thousand, four hundred two".