1224378534 has 16 divisors (see below), whose sum is σ = 2451456000. Its totient is φ = 407676360.

The previous prime is 1224378497. The next prime is 1224378541. The reversal of 1224378534 is 4358734221.

It is a junction number, because it is equal to n+sod(n) for n = 1224378492 and 1224378501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106534 + ... + 117465.

It is an arithmetic number, because the mean of its divisors is an integer number (153216000).

Almost surely, 2^1224378534 is an apocalyptic number.

1224378534 is an abundant number, since it is smaller than the sum of its proper divisors (1227077466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1224378534 is a wasteful number, since it uses less digits than its factorization.

1224378534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224915.

The product of its digits is 161280, while the sum is 39.

The square root of 1224378534 is about 34991.1207879942. The cubic root of 1224378534 is about 1069.8065082330.

The spelling of 1224378534 in words is "one billion, two hundred twenty-four million, three hundred seventy-eight thousand, five hundred thirty-four".