1421213402 has 8 divisors (see below), whose sum is σ = 2436365856. Its totient is φ = 609091452.

The previous prime is 1421213393. The next prime is 1421213407. The reversal of 1421213402 is 2043121241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1421213407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50757608 + ... + 50757635.

It is an arithmetic number, because the mean of its divisors is an integer number (304545732).

Almost surely, 2^1421213402 is an apocalyptic number.

1421213402 is a deficient number, since it is larger than the sum of its proper divisors (1015152454).

1421213402 is a wasteful number, since it uses less digits than its factorization.

1421213402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101515252.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1421213402 is about 37698.9840977181. The cubic root of 1421213402 is about 1124.3109266971.

Adding to 1421213402 its reverse (2043121241), we get a palindrome (3464334643).

The spelling of 1421213402 in words is "one billion, four hundred twenty-one million, two hundred thirteen thousand, four hundred two".