1438212022 has 32 divisors (see below), whose sum is σ = 2462050080. Its totient is φ = 625255680.

The previous prime is 1438212007. The next prime is 1438212029. The reversal of 1438212022 is 2202128341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438212029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7653 + ... + 54175.

It is an arithmetic number, because the mean of its divisors is an integer number (76939065).

Almost surely, 2^1438212022 is an apocalyptic number.

1438212022 is a deficient number, since it is larger than the sum of its proper divisors (1023838058).

1438212022 is a wasteful number, since it uses less digits than its factorization.

1438212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46608.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1438212022 is about 37923.7659258676. The cubic root of 1438212022 is about 1128.7756656076.

The spelling of 1438212022 in words is "one billion, four hundred thirty-eight million, two hundred twelve thousand, twenty-two".