1420003240 has 32 divisors (see below), whose sum is σ = 3204689760. Its totient is φ = 566280000.

The previous prime is 1420003237. The next prime is 1420003243. The reversal of 1420003240 is 423000241.

It is an interprime number because it is at equal distance from previous prime (1420003237) and next prime (1420003243).

It is a super-2 number, since 2×1420003240² = 4032818403220995200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1420003243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40386 + ... + 66865.

It is an arithmetic number, because the mean of its divisors is an integer number (100146555).

Almost surely, 2^1420003240 is an apocalyptic number.

1420003240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420003240 is an abundant number, since it is smaller than the sum of its proper divisors (1784686520).

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

1420003240 is a wasteful number, since it uses less digits than its factorization.

1420003240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107593 (or 107589 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1420003240 is about 37682.9303531453. The cubic root of 1420003240 is about 1123.9917194799.

Adding to 1420003240 its reverse (423000241), we get a palindrome (1843003481).

Subtracting from 1420003240 its reverse (423000241), we obtain a cube (997002999 = 999³).

The spelling of 1420003240 in words is "one billion, four hundred twenty million, three thousand, two hundred forty".