1420440242 has 64 divisors (see below), whose sum is σ = 2452222080. Its totient is φ = 612347904.

The previous prime is 1420440221. The next prime is 1420440257. The reversal of 1420440242 is 2420440241.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6257333 + ... + 6257559.

It is an arithmetic number, because the mean of its divisors is an integer number (38315970).

Almost surely, 2^1420440242 is an apocalyptic number.

1420440242 is a deficient number, since it is larger than the sum of its proper divisors (1031781838).

1420440242 is a wasteful number, since it uses less digits than its factorization.

1420440242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1420440242 is about 37688.7283149750. The cubic root of 1420440242 is about 1124.1070094166.

Adding to 1420440242 its reverse (2420440241), we get a palindrome (3840880483).

Subtracting 1420440242 from its reverse (2420440241), we obtain a palindrome (999999999).

The spelling of 1420440242 in words is "one billion, four hundred twenty million, four hundred forty thousand, two hundred forty-two".