1400521316 has 6 divisors (see below), whose sum is σ = 2450912310. Its totient is φ = 700260656.

The previous prime is 1400521307. The next prime is 1400521349. The reversal of 1400521316 is 6131250041.

It can be written as a sum of positive squares in only one way, i.e., 1303498816 + 97022500 = 36104^2 + 9850^2 .

It is a super-2 number, since 2×1400521316² = 3922919913140743712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1400521291 and 1400521300.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175065161 + ... + 175065168.

It is an arithmetic number, because the mean of its divisors is an integer number (408485385).

Almost surely, 2^1400521316 is an apocalyptic number.

It is an amenable number.

1400521316 is a deficient number, since it is larger than the sum of its proper divisors (1050390994).

1400521316 is a wasteful number, since it uses less digits than its factorization.

1400521316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350130333 (or 350130331 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1400521316 is about 37423.5395974245. The cubic root of 1400521316 is about 1118.8277797176.

Adding to 1400521316 its reverse (6131250041), we get a palindrome (7531771357).

The spelling of 1400521316 in words is "one billion, four hundred million, five hundred twenty-one thousand, three hundred sixteen".