1401952266 has 64 divisors (see below), whose sum is σ = 3660128640. Its totient is φ = 392152320.

The previous prime is 1401952247. The next prime is 1401952267. The reversal of 1401952266 is 6622591041.

It is a super-2 number, since 2×1401952266² = 3930940312285069512, 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 1401952266.

It is not an unprimeable number, because it can be changed into a prime (1401952267) 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, 83055 + ... + 98498.

It is an arithmetic number, because the mean of its divisors is an integer number (57189510).

Almost surely, 2^1401952266 is an apocalyptic number.

1401952266 is an abundant number, since it is smaller than the sum of its proper divisors (2258176374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1401952266 is a wasteful number, since it uses less digits than its factorization.

1401952266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181588 (or 181582 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1401952266 is about 37442.6530310020. The cubic root of 1401952266 is about 1119.2086954156.

The spelling of 1401952266 in words is "one billion, four hundred one million, nine hundred fifty-two thousand, two hundred sixty-six".