1242434408 has 8 divisors (see below), whose sum is σ = 2329564530. Its totient is φ = 621217200.

The previous prime is 1242434371. The next prime is 1242434423. The reversal of 1242434408 is 8044342421.

It can be written as a sum of positive squares in only one way, i.e., 1191768484 + 50665924 = 34522^2 + 7118^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77652143 + ... + 77652158.

Almost surely, 2^1242434408 is an apocalyptic number.

It is an amenable number.

1242434408 is a deficient number, since it is larger than the sum of its proper divisors (1087130122).

1242434408 is a wasteful number, since it uses less digits than its factorization.

1242434408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155304307 (or 155304303 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 1242434408 is about 35248.1830453713. The cubic root of 1242434408 is about 1075.0396691328.

Adding to 1242434408 its reverse (8044342421), we get a palindrome (9286776829).

The spelling of 1242434408 in words is "one billion, two hundred forty-two million, four hundred thirty-four thousand, four hundred eight".