1400213450 has 12 divisors (see below), whose sum is σ = 2604397110. Its totient is φ = 560085360.

The previous prime is 1400213393. The next prime is 1400213453. The reversal of 1400213450 is 543120041.

It can be written as a sum of positive squares in 3 ways, for example, as 894548281 + 505665169 = 29909^2 + 22487^2 .

It is not an unprimeable number, because it can be changed into a prime (1400213453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14002085 + ... + 14002184.

Almost surely, 2^1400213450 is an apocalyptic number.

1400213450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1400213450 is a deficient number, since it is larger than the sum of its proper divisors (1204183660).

1400213450 is a wasteful number, since it uses less digits than its factorization.

1400213450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28004281 (or 28004276 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1400213450 is about 37419.4261046318. The cubic root of 1400213450 is about 1118.7457925624.

Adding to 1400213450 its reverse (543120041), we get a palindrome (1943333491).

The spelling of 1400213450 in words is "one billion, four hundred million, two hundred thirteen thousand, four hundred fifty".